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D.15.1.4 mat2carr
Procedure from library arr.lib (see arr_lib).
- Usage:
- mat2carr(M); matrix M
- Return:
- [arr] interprets the rows of the matrix as the defining polynomial equations
of the arrangement. I.e. if M is an m*n matrix we have
H_i = Ker( M_i1*x_1 +...+ M_in*x_n) for i=1...m and
A = {H_1,...,H_m} the resulting arrangement.
Example:
| | LIB "arr.lib";
ring R = 0,(x,y,z),dp;
matrix M[4][3] = 1,0,1,1,1,0,0,1,1,2,1,1;
print(M);
==> 1,0,1,
==> 1,1,0,
==> 0,1,1,
==> 2,1,1
mat2carr(M);
==> _[1]=x+z
==> _[2]=x+y
==> _[3]=y+z
==> _[4]=2x+y+z
==>
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See also:
mat2arr.
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